Metal-working machine.



No. 642,289. Patented lan. 30, |900.

Fn. C. BILLINGS. METAL WORKING MACHINE.

(Application led Oct, 25, 1899.)

2 Sheets-Sheet l' (No Windel.)

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No. 642,289. Patented Jan. 30, |900. F. C. BILLINGS.

METAL WORKING MACHINE.

Application med oct. 25, 1899.)

(No Model.) 2 Sheets-Sheet 2,

iviTnn STATES FREDERIC C. BILLINGS, OF

HARTFORD, CONNECTICUT.

METAL-WORKING MACHINE.

SPECIFIGATION forming part of Letters Patent No.. 642,289, dated January30, 1900.

Application filed October 25, 1899. Serial No. 734,705. (No model.)

To all whom t may concern;

Be it known that I, FREDERIC C. BILLINcs, a citizen of the UnitedStates, residing in Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inMetal-Vorking Machines, of which the following is aspeoifi cation.

This invention relates to metal-working machines of that class having areciprocatory tool and means for actuating said tool, and has for itsobject the provision of an improved head in a machine of the characterdescribed, said head carrying the tool-actuating devices and beingformedin such a manner that it will strengthen the frame and serve asabracing member between the upper ends thereof, whereby the machine isrendered very stilf and rigid and displacement of the parts and shearingof the securing-bolts are obviated. To this end the head is providedwith overhanging members which are tted on the frame and which form, inconnection witha central member, means for carrying the tool-actuatingdevices, so that the parts constituting the operating mechanism may befitted in place and secured in their proper positions on the frame as aunitary structure.

My invention is shown preferably applied to drop-hammers, although it isnot limited thereto, as it may be employed with various classes ofmachines in which the frame is subjected to strain or vibration by theimpact of the tool.

In the drawings accompanying and forming part of this specification,Figure 1 is a perspective view of a drop-hammer embodying my invention.Fig. 2 is a side view of the upper part of the frame, one of theroll-supporting shafts being in section. Fig. 3 is a perspective view ofthe main part of a head constructed in accordance with my invention.Fig. 4L is a side elevation, partially in section; and Fig. 5 is a planview of the head, partially in section.

Like numerals and letters designate like parts in all the iigures of thedrawings.

In the drawings, 10 represents the base, to which the side frames oruprights 11 and 1l' are secured at their lower ends and between whichthe tool 12 is guided, said tool in the exempliiication carrying a board13, whereby the same may be lifted by a pair of rolls 1i and 14',journaled in bearing-boxes 15 and 15', two of which, 15, are adapted tobe moved toward and away from the others in the usual manner.

Usual caps 40, hinged to lugs 40' of head H, hereinafter described, areemployed for securing the bearing-boxes in position on said head, andthe usual rod 50 is provided for releasing the rolls either manually orautomatically in a well-known manner.

Heretofore it has been the practice to mount the carriers containingthese bearing-boxes iudependently of each other on the tops of the sideframes or uprights of the machine and to secure them by bolts passingvertically through said parts, and frequent annoyance has been caused bythe shearing or breaking of the bolts, which has been due to thevibration or springing action of the frames or uprights when the machineis in operation and particularly when the hammer or other tool strikesan inclined piece of work and thereby tends to wrench the uprightsapart.

In the present construction the head carrying the bearings consists of abody, prefer ably a casting, rigidly secured in position between thetops of the frame or uprights by one or more bolts passing transverselythrough both of said frames, which are in this manner clamped tightlyagainst the central member of the head, the result being that the strainon the parts due to the action of the machine is evenly distributed andthrown substantially upon the head, and as the bolts for retaining thehead in position pass transversely through the uprights and notvertically, as heretofore, all tendency to shear or break the same ispractically overcome.

The roll 14 is carried on a shaft 16, having an eccentric 16', journaledin half-bearings l5 of the head, as clearly shown in Fig. 2, while theroll 14 is journaled on a shaft 17, resting in boxes 15', which, asshown in Fig. 2, may be adj usted by the usual bolts. The bearings l5are located in the side members 19 19 and in the usual hinged caps ofthe head, which is designated in a general way by H and is providedwitha central depending member 20, located between and resting againstthe uprights, said member 2O being preferably formed integral with thesido mem- IOO bers 19 and 19', although it may be attached theretowithout departure from my invention, and having an aperture 21 to permitthe passage of a lifting-board or other device 13.

Each of the side members 19 and 19 has at its under side a recess, suchas 22, adapted to iit over the top of each side frame 11 and 11', andsaid central member 2O projects below the side members and serves as auabutment against which the upper ends of the side frames 11 and 11 maybe brought to bear, as by means of bolts 23 and 24 and the nuts 23 and24',respectively, as clearly shown in Figs. 4 and 5.

Each side frame or upright 11 11' is rabbeted at 112, and the projection113 iits in a recess 22 in depending member 20, ribs or flanges 25 onsaid member 20 preventing displacement of the head vertically.

As will be understood, the tops of the uprghts 11 11 fit yin therecesses 22 of the head when the latter is placed in position, wherebysaid uprights will be brought into alinement with each other, while atthe same time the distance between them will be positively determined bythe intervening central member 20, so that they will be properly spacedapar-t and the hammer will be truly guided when in operation. As will beevident, when the frame of a drop-hammer is provided with a head asabove described great rigidity will result, due to the fact that theparts are rigidly united, as shown, and consequently the evil effectsdue to the vibration of the frame will be reduced to a minimum orentirely obviated.

While the usual lifting-rolls are shown as a type of tool-operatingmechanism which may be employed, it is distinctly to be understood thatthe invention is not limited thereto, for other lifting mechanism may beused without departure therefrom.

Having described my invention, I claim- 1. In a machine of the classspecified, the combination, with a tool, of frames between which thetool is guided; a head fitted to and having a projecting member locatedbetween and the sides thereof bearing against said frames; means passingoutside of the head for securing said head to the frames; and meanscarried by'the head for actuating the tool.

2. In a machine of the class described, the combination, with a pair ofside frames and a hammer,ofa head having a depending member supported byand between and bearing against said side frames, and means passing oneach side of but not through the head for securing said head and framestogether.

3. In a machine of the class described7 the combination, with a pair ofside frames and a tool,- of a head embodying a pair of side members anda central projecting member connected therewith and bearing at each sideagainst the frames; means carried by said head for actuating the tool;and means passing transversely through the side frames at each side ofthe head for retainingsaid head in position on said side frames.

4. In a machine of the class described, the combination, with a pair ofside frames and a hammer having a lifting-board, of a unitaryroll-carrying head embodying a pair of side members and a central memberintegrally connected therewith and having an aperture to permit thepassage of the liftingboard, and means passing at each side. of but notthroughv the head for retaining saidhead in position on the side frames.

5. In a machine of the class described, the combination, with a pair ofside frames and a hammer having a lifting-board, of a unitaryroll-carrying head embodying a pair of side members and a central memberintegrally connected therewith and forming a side abutment for said sideframes, and means passing outside of but not through the head forsecuring said head in position.

6. In a machine of the class described, the combination, with a pair ofside frames and a hammer having a lifting-board, of a unitaryroll-carrying head embodying a pair of side members and a central memberintegrally connected therewith and having an aperture to permit thepassvage of the liftingboard; means for retaining said head in positionon the side frames; and bolts passing on each side of but not throughthe head for clamping said head in position between said side frames.

7. In a machine of the class described, the combination, 'with a pair ofuprights having rabbeted top portions, of a head havinga dependinga-pertured member provided with side projections located between saiduprights, said head also having recesses to receive and fit upon theuprights; a hammer; and means carried by said head for'raising andreleasing said hammer.

8. In a machine of the class described, the combination, with a pair ofuprights having rabbeted top portions, of a head havinga dependingapertured member integral therewith provided with side projectionslocated between and tted against the shoulders formed by said rabbetedportions of the uprights; a hammer; and means carried by said head forraising and releasing said hammer.

9. In a machine of the class described, the combination, with a pair ofvertical uprights having rabbeted top portions, of a head provided withan apertured depending member with side anges fitted vagainst theshoulders of the rabbeted portions of said uprights, said head alsohaving ways or recesses to receive the top portions of the uprights; apair of rolls mounted in bearings carried by said head, one of saidrolls carrying an eccentric; a hammer; a lifting-board carried thereby;and means for actuating the roll carrying the eccentric, to release saidhammer.

10. In a machine of the class described, the

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combination, with the usual lifting-board, of hammer having a strapadapted to be ena head having bearings to receive said rolls; gaged andlifted by said rolls, substantially a pair of uprights having topportions fitted as and for the purpose specified.

:in recesses of the head; side flanges projeet- FREDERIC C. BILLINGS. 5ing from the head zuid bearing against the Witnesses:

shoulders of the rabbets in the uprights; DAISY E. MARCHANT,

hinged caps connected to the head; and :i l XVM. H. BLODGETT.

